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FPF2123

FPF2123

  • 厂商:

    ONSEMI(安森美)

  • 封装:

    SOT23-5

  • 描述:

    电源开关/负载开关 SOT23-5 Vin=1.8V~5.5V

  • 数据手册
  • 价格&库存
FPF2123 数据手册
IntelliMAXt Advanced Load Management Product FPF2123-FPF2125 Description The FPF2123, FPF2124, and FPF2125 are a series of load switches which provide full protection to systems and loads which may encounter large current conditions. These devices contain a 0.125 W current−limited P−channel MOSFET which can operate over an input voltage range of 1.8−5.5 V. The current limit is settable using an external resistor. Internally, current is prevented from flowing when the MOSFET is off and the output voltage is higher than the input voltage. Switch control is by a logic input (ON) capable of interfacing directly with low voltage control signals. Each part contains thermal shutdown protection which shuts off the switch to prevent damage to the part when a continuous over−current condition causes excessive heating. When the switch current reaches the current limit, the parts operate in a constant−current mode to prohibit excessive currents from causing damage. For the FPF2123 and FPF2124 if the constant current condition still persists after 10 ms, these parts will shut off the switch. The FPF2123 has an auto−restart feature which will turn the switch on again after 160 ms if the ON pin is still active. The FPF2124 does not have this auto−restart feature so the switch will remain off after a current limit fault until the ON pin is cycled. The FPF2125 will not turn off after a current limit fault, but will rather remain in the constant current mode indefinitely. The minimum current limit is 150 mA. These parts are available in a space−saving 5 pin SOT23 package. Features • • • • • • • • • • • www.onsemi.com SOT23−5 CASE 527AH MARKING DIAGRAM &E&E&Y &O212X&C &.&O&E&V &E &Y &O 212X &C &. &V 1.8 to 5.5 V Input Voltage Range Controlled Turn−On 0.15−1.5 A Adjustable Current Limit Under−Voltage Lockout Thermal Shutdown < 2 mA Shutdown Current Auto Restart Fast Current Limit Response Time ♦ 3 ms to Moderate Over Currents Fault Blanking Reverse Current Blocking These Devices are Pb−Free and are RoHS Compliant = Designates Space = Binary Calendar Year Coding Scheme = Plant Code identifier = Device Specific Code X = 3. 4 or 5 = Single digit Die Run Code = Pin One Dot = Eight−Week Binary Datecoding Scheme ORDERING INFORMATION See detailed ordering and shipping information on page 11 of this data sheet. Applications • • • • • • • PDAs Cell Phones GPS Devices MP3 Players Digital Cameras Peripheral Ports Hot Swap Supplies © Semiconductor Components Industries, LLC, 2008 May, 2021 − Rev. 6 1 Publication Order Number: FPF2125/D FPF2123−FPF2125 Typical Application Circuit VOUT VIN TO LOAD FPF2123−FPF2125 ON OFF ON + ISET GND − Figure 1. Typical Application Functional Block Diagram VIN UVLO ON REVERSE CURRENT BLOCKING CONTROL LOGIC CURRENT LIMT VOUT THERMAL SHUTDOWN ISET GND Figure 2. Block Diagram Pin Configuration VIN 1 GND 2 ON 3 5 VOUT 4 ISET SOT23−5 Figure 3. Pin Assignment www.onsemi.com 2 FPF2123−FPF2125 PIN DESCRIPTIONS Pin Name 1 VIN Function 2 GND 3 ON 4 ISET Current Limit Set Input: A resistor from ISET to ground sets the current limit for the switch. 5 VOUT Switch Output: Output of the power switch Supply Input: Input to the power switch and the supply voltage for the IC Ground ON Control Input ABSOLUTE MAXIMUM RATINGS Parameter VIN, VOUT, ON, ISET to GND Min Max Unit −0.3 6.0 V 667 mW Power Dissipation @ TA = 25°C (Note 1) Operating Temperature Range −40 125 °C Storage Temperature −65 150 °C 150 °C/W Thermal Resistance, Junction to Ambient Electrostatic Discharge Protection HBM 4000 MM 400 V Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. Package power dissipation on 1 square inch pad, 2 oz copper board. RECOMMENDED OPERATING CONDITIONS Symbol Min Max Unit VIN Input Voltage Parameter 1.8 5.5 V TA Ambient Operating Temperature −40 85 °C Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended Operating Ranges limits may affect device reliability. ELECTRICAL CHARACTERISTICS VIN = 1.8 to 5.5 V, TA = −40 to +85°C unless otherwise noted. Typical values are at VIN = 3.3 V and TA = 25°C. Parameter Symbol Test Condition Min Typ Max Unit BASIC OPERATION VIN Operating Voltage IQ Quiescent Current 1.8 IOUT = 0 mA 5.5 VIN = 1.8 to 3.3 V 75 VIN = 3.3 to 5.5 V 80 V mA 120 ISHDN Shutdown Current 2 mA IBLOCK Reverse Block Leakage Current 1 mA ILATCHOFF RON Latch−Off Current FPF2124 50 ON−Resistance VIN = 3.3 V, IOUT = 50 mA, TA = 25°C 125 160 150 200 VIN = 3.3 V, IOUT = 50 mA, TA = 85°C VIN = 3.3 V, IOUT = 50 mA, TA = −40°C to + 85°C VIH VIL ON Input Logic High Voltage (ON) ON Input Logic Low Voltage (ON) 65 VIN = 1.8 V 0.75 VIN = 5.5 V 1.30 mA 200 V VIN = 1.8 V 0.5 VIN = 5.5 V 1.0 www.onsemi.com 3 mW V FPF2123−FPF2125 ELECTRICAL CHARACTERISTICS (continued) VIN = 1.8 to 5.5 V, TA = −40 to +85°C unless otherwise noted. Typical values are at VIN = 3.3 V and TA = 25°C. Symbol Parameter Test Condition Min Typ Max Unit BASIC OPERATION ISWOFF ON Input Leakage VON = VIN or GND 1 mA Off Switch Leakage VON = 0 V, VOUT = 0 V 1 mA 1000 mA PROTECTIONS ILIM ILIM(min.) UVLO Current Limit VIN = 3.3 V, VOUT = 3.0 V, RSET = 576 W Min. Current Limit VIN = 3.3 V, VOUT = 3.0 V 150 mA Thermal Shutdown Shutdown Threshold 140 °C Return from Shutdown 130 Hysteresis 10 Under Voltage Shutdown VIN Increasing 600 1.5 Under Voltage Shutdown Hysteresis 800 1.6 1.7 V 50 mV DYNAMIC tON Turn On Time RL = 500 W, CL = 0.1 mF 25 ms tOFF Turn Off Time RL = 500 W, CL = 0.1 mF 70 ms tR VOUT Rise Time RL = 500 W, CL = 0.1 mF 12 ms tF VOUT Fall Time RL = 500 W, CL = 0.1 mF 200 ms Over Current Blanking Time FPF2123, FPF2124 5 10 20 ms Auto−Restart Time FPF2123 80 160 320 ms tBLANK tRESTART FPF2124, FPF2125 Short Circuit Response Time NA VIN = VON = 3.3 V Moderate Over−Current Conditions 3 ms VIN = VON = 3.3 V Hard Short 20 ms Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. www.onsemi.com 4 FPF2123−FPF2125 TYPICAL CHARACTERISTICS 95 VON = VIN 74 SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) 76 72 70 68 66 64 62 1.5 2 2.5 3 3.5 4 4.5 5 5.5 VIN = 3.3 V 75 VIN = 5.5 V 65 VIN = 1.8 V 55 45 −40 6 10 35 60 85 TJ, JUNCTION TEMPERATURE (°C) Figure 4. Quiescent Current vs. Input Voltage Figure 5. Quiescent Current vs. Temperature 500 SUPPLY CURRENT (nA) 2100 VIN = 5.5 V 1800 1500 1200 900 VIN = 3.3 V 600 300 450 400 350 VIN = 5.5 V 300 250 200 150 100 VIN = 3.3 V 50 0 −40 −15 10 35 60 0 −40 85 TJ, JUNCTION TEMPERATURE (°C) 0.18 1.2 SUPPLY CURRENT (mA) 1.4 0.15 0.12 0.09 0.06 0.03 2.0 2.5 3.0 3.5 4.0 4.5 5.0 10 35 60 85 Figure 7. ISWITCH−OFF Current vs. Temperature 0.21 0.00 1.5 −15 TJ, JUNCTION TEMPERATURE (°C) Figure 6. ISHUTDOWN Current vs. Temperature SUPPLY CURRENT (mA) −15 SUPPLY VOLTAGE (V) 2400 SUPPLY CURRENT (nA) 85 5.5 1.0 VIN = 5.5 V 0.8 0.6 0.4 VIN = 3.3 V 0.2 0.0 −40 6.0 SUPPLY VOLTAGE (V) −15 10 35 60 TJ, JUNCTION TEMPERATURE (°C) Figure 8. Reverse Current vs. VOUT Figure 9. Reverse Current vs. Temperature www.onsemi.com 5 85 FPF2123−FPF2125 TYPICAL CHARACTERISTICS (Continued) 900 51.5 OUTPUT CURRENT (mA) SUPPLY CURRENT (mA) 52.0 51.0 50.5 50.0 49.5 49.0 −40 −15 10 35 60 860 820 780 740 700 1.5 85 VIN − VOUT = 0.3 V RSET = 576 2 2.5 Figure 10. ILATCH−OFF Current vs. Temperature OUTPUT CURRENT (mA) OUTPUT CURRENT (mA) 820 780 740 10 35 60 600 300 0 200 85 800 1400 1.2 160 1.0 150 0.8 0.6 130 120 0.2 110 5 3200 140 0.4 4 2600 Figure 13. Current Limit vs. Rest 170 3 2000 RSET (W) RON (mW) ON THRESHOLD (V) 6 900 1.4 2 5.5 1200 Figure 12. Current Limit vs. Temperature 1 5 1500 TJ, JUNCTION TEMPERATURE (°C) 0.0 4.5 1800 860 −15 4 Figure 11. Current Limit vs. Input Voltage RSET = 576 700 −40 3.5 VIN, INPUT VOLTAGE (V) TJ, JUNCTION TEMPERATURE (°C) 900 3 100 6 1 2 3 4 VIN, INPUT VOLTAGE (V) VIN, INPUT VOLTAGE (V) Figure 14. VIH vs. VIN Figure 15. RON vs. VIN www.onsemi.com 6 5 6 FPF2123−FPF2125 TYPICAL CHARACTERISTICS (Continued) 200 180 VIN = 1.8 V 160 RON (mW) TURN−ON/OFF TIMES (ms) 100 140 VIN = 3.3 V 120 VIN = 5.5 V 100 80 60 −40 −15 10 35 60 TOFF 10 −40 85 TJ, JUNCTION TEMPERATURE (°C) 10 35 60 14 BLANKING TIME (ms) TFALL 100 TRISE 10 VIN = 3.3 V RL = 500 W COUT = 0.1 mF −15 10 35 60 13 12 11 10 9 8 −40 85 TJ, JUNCTION TEMPERATURE (°C) −15 10 35 60 TJ, JUNCTION TEMPERATURE (°C) Figure 19. TBLANK vs. Temperature Figure 18. TRISE/TFALL vs. Temperature 200 RESTART TIME (ms) 190 VDRV2 2 V/DIV 180 170 VOUT 2 V/DIV 160 VIN = 3.3 V RL = 2.2 W CIN = 10 mF COUT = 0.1 mF 150 140 130 120 −40 85 Figure 17. TON/TOFF vs Temperature 1000 RISE / FALL TIMES (ms) −15 TJ, JUNCTION TEMPERATURE (°C) Figure 16. R(ON) vs. Temperature 1 −40 TON VIN = 3.3 V RL = 500 W COUT = 0.1 mF IOUT 400 mA/DIV −15 10 35 60 85 TJ, JUNCTION TEMPERATURE (°C) Figure 20. TRESTART vs. Temperature Figure 21. TBLANK Response www.onsemi.com 7 85 FPF2123−FPF2125 TYPICAL CHARACTERISTICS (Continued) VDRV2 2 V/DIV VOUT 2 V/DIV VON 2 V/DIV VIN = 3.3 V RL = 2.2 W CIN = 10 mF COUT = 0.1 mF VIN = 3.3 V RL = 500 W CIN = 10 mF COUT = 0.1 mF IOUT 10 mA/DIV IOUT 400 mA/DIV Figure 23. TON Response Figure 22. TRESTART Response VON 2 V/DIV VIN = 3.3 V RL = 500 W CIN = 10 mF COUT = 0.1 mF VIN 2 V/DIV CIN = 10 mF COUT = 0.1 mF IOUT 4 A/DIV IOUT 10 mA/DIV VOUT 2 V/DIV Figure 25. Short Circuit Response (Output Shorted to GND) Figure 24. TOFF Response VIN 2 V/DIV VIN = VON 2 V/DIV CIN = 10 mF COUT = 0.1 mF VON 2 V/DIV IOUT 400 mA/DIV IOUT 400 mA/DIV Figure 26. Current Limit Response (Switch Power Up to Hard Short) NOTE: RL = 2.2 W CIN = 10 mF COUT = 0.1 mF Figure 27. Current Limit Response (Output Shorted to GND by 2.2 W, Moderate Short) VDRV signal forces the device to go into overcurrent condition by loading a 2.2 W resistor. www.onsemi.com 8 FPF2123−FPF2125 Description of Operation Current Limiting The FPF2123, FPF2124, and FPF2125 are current limited switches that protect systems and loads which can be damaged or disrupted by the application of high currents. The core of each device is a 0.125 W P−channel MOSFET and a controller capable of functioning over a wide input operating range of 1.8−5.5 V. The controller protects against system malfunctions through current limiting under−voltage lockout and thermal shutdown. The current limit is adjustable from 150 mA to 1.5 A through the selection of an external resistor. The current limit ensures that the current through the switch doesn’t exceed a maximum value while not limiting at less than a minimum value. The current at which the parts will limit is adjustable through the selection of an external resistor connected to ISET. Information for selecting the resistor is found in the Application Info section. The FPF2123 and FPF2124 have a blanking time of 10 ms, nominally, during which the switch will act as a constant current source. At the end of the blanking time, the switch will be turned−off. The FPF2125 has no current limit blanking period so it will remain in a constant current state until the ON pin is deactivated or the thermal shutdown turns−off the switch. On/Off Control The ON pin controls the state of the switch. When ON is high, the switch is in the on state. Activating ON continuously holds the switch in the on state so long as there is no fault. For all versions, an under−voltage on VIN or a junction temperature in excess of 140°C overrides the ON control to turn off the switch. In addition, excessive currents will cause the switch to turn off in the FPF2123 and FPF2124. The FPF2123 has an Auto−Restart feature which will automatically turn the switch on again after 160 ms. For the FPF2124, the ON pin must be toggled to turn−on the switch again. The FPF2125 does not turn off in response to an over current condition but instead remains operating in a constant current mode so long as ON is active and the thermal shutdown or under−voltage lockout have not activated. The ON pin control voltage and VIN pin have independent recommended operating ranges. The ON pin voltage can be driven by a voltage level higher than the input voltage. Under−Voltage Lockout The under−voltage lockout turns−off the switch if the input voltage drops below the under−voltage lockout threshold. With the ON pin active, the input voltage rising above the under−voltage lockout threshold will cause a controlled turn−on of the switch which limits current over−shoots. Thermal Shutdown The thermal shutdown protects the die from internally or externally generated excessive temperatures. During an over−temperature condition the switch is turned−off. The switch automatically turns−on again if the temperature of the die drops below the threshold temperature. www.onsemi.com 9 FPF2123−FPF2125 APPLICATIONS INFORMATION VOUT VIN FPF2123−FPF2125 Battery 5.5 V − ON OFF ON + ISET GND 5.5 V MAX C1 = 4.7 mF R2 = 110 W C2 = 0.1 mF RSET Figure 28. Typical Application Setting Current Limit value, COUT(max), to prevent the part from registering an over−current condition and turning−off the switch. The maximum output capacitance can be determined from the following formula, The FPF2123, FPF2124, and FPF2125 have a current limit which is set with an external resistor connected between ISET and GND. This resistor is selected by using the following equation (1), R SET + 460 I LIM (eq. 1) C OUT(max) + RSET is in Ohms and that of ILIM is Amps. The table below can also be used to select RSET. A typical application would be the 500 mA current that is required by a single USB port. Using the table below an appropriate selection for the RSET resistor would be 604 W. This will ensure that the port load could draw 570 mA, but not more than 950 mA. Likewise for a dual port system, an RSET of 340 W would always deliver at least 1120 mA and never more than 1860 mA. I LIM(min) t BLANK(min) V IN (eq. 2) Table 1. Current Limit Various RSET Values Input Capacitor To limit the voltage drop on the input supply caused by transient in−rush currents when the switch turns−on into a discharged load capacitance or a short−circuit, a capacitor needs to be placed between VIN and GND. A 4.7 mF ceramic capacitor, CIN, must be placed close to the VIN pin. A higher value of CIN can be used to further reduce the voltage drop experienced as the switch is turned on into a large capacitive load. Output Capacitor A 0.1 mF capacitor, COUT, should be placed between VOUT and GND. This capacitor will prevent parasitic board inductances from forcing VOUT below GND when the switch turns−off. For the FPF2123 and FPF2124, the total output capacitance needs to be kept below a maximum RSET [W] Min. Current Limit [mA] Typ. Current Limit [mA] Max. Current Limit [mA] 309 1120 1490 1860 340 1010 1350 1690 374 920 1230 1540 412 840 1120 1400 453 760 1010 1270 499 690 920 1150 549 630 840 1050 576 600 800 1000 604 570 760 950 732 470 630 790 887 390 520 650 1070 320 430 540 1300 260 350 440 1910 180 240 300 3090 110 150 190 www.onsemi.com 10 FPF2123−FPF2125 Power Dissipation output is present will cause the temperature of the part to increase. The junction temperature will only be able to increase to the thermal shutdown threshold. Once this temperature has been reached, toggling ON will not turn−on the switch until the junction temperature drops. For the FPF2125, a short on the output will cause the part to operate in a constant current state dissipating a worst case power of, During normal operation as a switch, the power dissipated in the part will depend upon the level at which the current limit is set. The maximum allowed setting for the current limit is 1.5 A and this will result in a typical power dissipation of, P + (I LIM) 2 R ON + (1.5) 2 0.125 + 281 mW (eq. 3) P(max) + V IN(max) If the part goes into current limit the maximum power dissipation will occur when the output is shorted to ground. For the FPF2123 the power dissipation will scale by the Auto−Restart Time, tRESTART, and the Over Current Blanking Time, tBLANK, so that the maximum power dissipated is, P(max) + V IN(max) 20 80 ) 20 5.5 1.5 + 8.25 W (eq. 5) This large amount of power will activate the thermal shutdown and the part will cycle in and out of thermal shutdown so long as the ON pin is active and the short is present. t BLANK(max) t RESTART(min) ) t BLANK(max) I LIM(max) + I LIM(max) + 5.5 Board Layout For best performance, all traces should be as short as possible. To be most effective, the input and output capacitors should be placed close to the device to minimize the effects that parasitic trace inductances may have on normal and short−circuit operation. Using wide traces for VIN, VOUT and GND will help minimize parasitic electrical effects along with minimizing the case to ambient thermal impedance. 1.5 + 1.65 W (eq. 4) This is more power than the package can dissipate, but the thermal shutdown of the part will activate to protect the part from damage due to excessive heating. When using the FPF2124, attention must be given to the manual resetting of the part. Continuously resetting the part when a short on the ORDERING INFORMATION Part Number Current Limit [A] Current Limit Blanking Time [ms] Auto Restart Time [ms] On Pin Activity Top Mark Shipping† FPF2123 0.15 − 1.5 5/10/20 80/160/320 Active HI 2123 3000 / Tape & Reel FPF2124 0.15 − 1.5 5/10/20 NA Active HI 2124 3000 / Tape & Reel FPF2125 0.15 − 1.5 Infinite NA Active HI 2425 3000 / Tape & Reel †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D IntelliMAX is a trademark of Semiconductor Components Industries, LLC (SCILLC) or its subsidiaries in the United States and/or other coutries. www.onsemi.com 11 MECHANICAL CASE OUTLINE PACKAGE DIMENSIONS SOT−23, 5 Lead CASE 527AH ISSUE A DATE 09 JUN 2021 q q q q q q1 q2 GENERIC MARKING DIAGRAM* XXXM XXX = Specific Device Code M = Date Code *This information is generic. Please refer to device data sheet for actual part marking. Pb−Free indicator, “G” or microdot “G”, may or may not be present. Some products may not follow the Generic Marking. DOCUMENT NUMBER: DESCRIPTION: 98AON34320E SOT−23, 5 LEAD Electronic versions are uncontrolled except when accessed directly from the Document Repository. Printed versions are uncontrolled except when stamped “CONTROLLED COPY” in red. PAGE 1 OF 1 ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. ON Semiconductor does not convey any license under its patent rights nor the rights of others. © Semiconductor Components Industries, LLC, 2019 www.onsemi.com onsemi, , and other names, marks, and brands are registered and/or common law trademarks of Semiconductor Components Industries, LLC dba “onsemi” or its affiliates and/or subsidiaries in the United States and/or other countries. onsemi owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of onsemi’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. onsemi reserves the right to make changes at any time to any products or information herein, without notice. The information herein is provided “as−is” and onsemi makes no warranty, representation or guarantee regarding the accuracy of the information, product features, availability, functionality, or suitability of its products for any particular purpose, nor does onsemi assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using onsemi products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by onsemi. “Typical” parameters which may be provided in onsemi data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. onsemi does not convey any license under any of its intellectual property rights nor the rights of others. onsemi products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use onsemi products for any such unintended or unauthorized application, Buyer shall indemnify and hold onsemi and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that onsemi was negligent regarding the design or manufacture of the part. onsemi is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Email Requests to: orderlit@onsemi.com onsemi Website: www.onsemi.com ◊ TECHNICAL SUPPORT North American Technical Support: Voice Mail: 1 800−282−9855 Toll Free USA/Canada Phone: 011 421 33 790 2910 Europe, Middle East and Africa Technical Support: Phone: 00421 33 790 2910 For additional information, please contact your local Sales Representative
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